<template>
  <div>
    <div class="shopcart">
        <div class="content">
            <div class="content-left" @click="toggleShow">
                <div class="logo-wrapper">
                    <div class="logo" :class="{highlight:totalCount}">
                        <i class="iconfont icon-gouwuche" :class="{highlight:totalCount}"></i>
                    </div>
                    <div class="num" v-if="totalCount">{{totalCount}}</div>
                </div>
                <div class="price" :class="{highlight:totalCount}">￥{{totalPrice}}</div>
                <div class="desc">另需配送费￥{{info.deliveryPrice}} 元</div>
            </div>
            <div class="content-right">
                <div class="pay" :class="payClass">
                    {{payText}}
                </div>
            </div>
        </div>
        <transition name="move">
        <div class="shopcart-list" v-if="listShow">
            <div class="list-header">
                <h1 class="title">购物车</h1>
                <span class="empty" @click="clearCart">清空</span>
            </div>
            <div class="list-content">
                <ul>
                    <li class="food" v-for="(food, index) in cartFoods" :key="index">
                        <span class="name">{{food.name}}</span>
                        <div class="price"><span>￥{{food.price}}</span></div>
                        <div class="cartcontrol-wrapper">
                            <CartControl :food="food"></CartControl>
                        </div>
                    </li>
                </ul>
            </div>
        </div>
        </transition>
        
    </div>
    <div class="list-mask" v-show="listShow" @click="toggleShow"></div>
</div>
</template>

<script>
import {mapState,mapGetters} from 'vuex'
import CartControl from '../../components/CartControl/CartControl.vue'
import BetterScroll from 'better-scroll'
import { MessageBox,Toast } from 'mint-ui';
export default {
  data() {
    return {
      isShow:false
    }
  },
    components:{
      CartControl
    },
    computed:{
        ...mapState(['cartFoods','info']),
        ...mapGetters(['totalCount','totalPrice']),
        payClass(){
          const totalPrice = this.totalPrice
          const minPrice = this.info.minPrice
          return totalPrice>=minPrice ? 'enough' : 'not-enough'
        },
        payText(){
           const totalPrice = this.totalPrice
           const minPrice = this.info.minPrice
          if(totalPrice===0){
            return `￥${minPrice}元起送`
          }else if(totalPrice<minPrice){
            return `还差￥${minPrice-totalPrice}元起送`
          }else{
            return '结算'
          }
    },
    listShow(){
      // 如果总数量为0,直接不显示
      if(this.totalCount===0){
        this.isShow = false
        return false
      }
      if(this.isShow){
        this.$nextTick(()=>{
          new BetterScroll('.list-content')
        })
      }
        return this.isShow
    }
  },
  methods: {
    toggleShow(){
      this.isShow = !this.isShow
    },
    clearCart(){
      MessageBox.confirm('确定清空购物车吗?').then(
        action => {
        // 请求退出
        this.$store.dispatch('clearCart')
        Toast('清空成功')
    },()=>{})
    }
  },
}
</script>

<style lang="stylus" rel="stylesheet/stylus" scoped>
    @import "../../common/stylus/mixins.styl"
  .shopcart
    position fixed
    left 0
    bottom 0
    z-index 50
    width 100%
    height 48px
    .content
      display flex
      background #141d27
      font-size 0
      color rgba(255, 255, 255, 0.4)
      .content-left
        flex 1
        .logo-wrapper
          display inline-block
          vertical-align top
          position relative
          top -10px
          margin 0 12px
          padding 6px
          width 56px
          height 56px
          box-sizing border-box
          border-radius 50%
          background #141d27
          .logo
            width 100%
            height 100%
            border-radius 50%
            text-align center
            background #2b343c
            &.highlight
              background $green
            .icon-gouwuche
              line-height 44px
              font-size 24px
              color #80858a
              &.highlight
                color #fff
          .num
            position absolute
            top 0
            right 0
            width 24px
            height 16px
            line-height 16px
            text-align center
            border-radius 16px
            font-size 9px
            font-weight 700
            color #ffffff
            background rgb(240, 20, 20)
            box-shadow 0 4px 8px 0 rgba(0, 0, 0, 0.4)
        .price
          display inline-block
          vertical-align top
          margin-top 5px
          line-height 24px
          padding-right 12px
          box-sizing border-box
          font-size 16px
          font-weight 700
          color #fff
          &.highlight
            color #fff
        .desc
          display inline-block
          vertical-align bottom
          margin-bottom 15px
          margin-left -45px
          font-size 10px
      .content-right
        flex 0 0 105px
        width 105px
        .pay
          height 48px
          line-height 48px
          text-align center
          font-size 12px
          font-weight 700
          color #fff
          &.not-enough
            background #2b333b
          &.enough
            background #00b43c
            color #fff
    .ball-container
      .ball
        position fixed
        left 32px
        bottom 22px
        z-index 200
        transition all 0.4s cubic-bezier(0.49, -0.29, 0.75, 0.41)
        .inner
          width 16px
          height 16px
          border-radius 50%
          background $green
          transition all 0.4s linear
    .shopcart-list
      position absolute
      left 0
      top 0
      z-index -1
      width 100%
      transform translateY(-100%)
      &.move-enter-active,&.move-leave-active
        transition transform  .3s
      &.move-enter,&.move-leave-to
        transform translateY(0)
      .list-header
        height 40px
        line-height 40px
        padding 0 18px
        background #f3f5f7
        border-bottom 1px solid rgba(7, 17, 27, 0.1)
        .title
          float left
          font-size 14px
          color rgb(7, 17, 27)
        .empty
          float right
          font-size 12px
          color rgb(0, 160, 220)

      .list-content
        padding 0 18px
        max-height 217px
        overflow hidden
        background #fff
        .food
          position relative
          padding 12px 0
          box-sizing border-box
          bottom-border-1px(rgba(7, 17, 27, 0.1))
          .name
            line-height 24px
            font-size 14px
            color rgb(7, 17, 27)
          .price
            position absolute
            right 90px
            bottom 12px
            line-height 24px
            font-size 14px
            font-weight 700
            color rgb(240, 20, 20)
          .cartcontrol-wrapper
            position absolute
            right 0
            bottom 6px

  .list-mask
    position fixed
    top 0
    left 0
    width 100%
    height 100%
    z-index 40
    backdrop-filter blur(10px)
    opacity 0.7
    background rgba(10, 9, 27, 0.7)
    &.fade-enter-active, &.fade-leave-active
      transition all 0.5s
    &.fade-enter, &.fade-leave-to
      opacity 0
      background rgba(7, 17, 27, 0)
</style>